Measurement error in imputation procedures

We study how estimators that are used to impute consumption in survey data are inconsistent due to measurement error in consumption. Previous research suggests instrumenting consumption to overcome this problem. We show that, if additional regressors are present, then instrumenting consumption may still produce inconsistent estimators due to the likely correlation between additional regressors and measurement error. On the other hand, low correlations between additional regressors and instruments may reduce bias due to measurement error. We apply our findings by revisiting recent research that imputes consumption data from the CEX to the PSID.     

Risk-sharing and crises. Global games of regime change with endogenous wealth

I add heterogeneous agents and risk-sharing opportunities to a global game of regime change. The novel insight is that when there is a risk-sharing motive, fundamentals drive not only individual behavior, but also select which individuals are more relevant for the likelihood of a crisis because of endogenous shifts in wealth. If attacking is relatively safe, attack behavior in the global game and trade in state-contingent assets feed back into each other. This feedback implies that multiple equilibria may exist even if signal noise becomes arbitrarily small. In addition, heterogeneity in risk-aversion within the population amplifies the influence of the state of the economy on the probability of a crisis.     

Satisfaction with service recovery: Perceived justice and emotional responses

This study examines the relationship between perceived justice, emotions, and satisfaction during service recovery (SR). The current research work proposes a model analyzing the direct effects of justice on satisfaction, along with its indirect effects, via emotions. A field study that captures consumer perceptions of actual SR situations in the cellular-telephone sector tests the model. The paper investigates the relative effects of the dimensions of perceived justice on satisfaction and the emotions triggered by SR. Results indicate that all three justice dimensions affect satisfaction, with procedural justice showing the strongest relative influence, as well as being the only dimension affecting the emotions. Results also show that negative emotions mediate the effects of justice on satisfaction with SR (SSR).     

On the Dynamics of Trade Patterns

In this paper we analyse the dynamics of trade patterns in the six largest industrialised countries and in eight fast growing Asian economies. For each of these countries we study the shape of the sectoral distribution of an index of trade specialisation and its evolution over time. Our analysis shows a marked difference between the advanced and the emerging countries as far as the degree of persistence is concerned: the former have in fact a highly persistent trade pattern, whereas the latter show a rapidly changing trade specialisation. However, the two groups of countries are more similar as far as the evolution of the degree of specialisation is concerned. Although emerging countries are still more specialised than the industrialised countries, both groups show a tendency toward a reduced polarisation and a more symmetric distribution of the specialisation index. This evidence is in line with the traditional trade theory, in which changing comparative advantage is the determinant of a changing trade pattern. Contrarily, this evidence does not support the idea that self-reinforcing mechanisms are prominent in international trade specialisation.     

Development and Psychometric Analysis of an Instrument to Measure the Reasons that Oncological Patients give when Participating in a Psychological Intervention

This work presents the psychometric study of a questionnaire on participation in psychological therapy (QPPT). The study is applied to oncological patients and the questionnaire was designed to evaluate the reasons given by chronic patients when participating or not in programmes of psychological treatment. The questionnaire includes six rational areas which resulted from the confirmatory factorial analysis.The internal consistency of the scales was analysed through Cronbach’s Alpha, and their discriminatory capacity between criterion groups of oncological patients was tested by means of t-tests and discriminant analyses. The results support, to a reasonable extent, the reliability and validity of the QPPT as an instrument to evaluate the reasons of participation or refusal of psychological treatment in oncological patients.     

A Spatial Econometric Approach to the Economics of Site-Specific Nitrogen Management in Corn Production

The objective of this study is to determine the potential for using spatial econometric analysis of combine yield monitor data to estimate the site-specific crop response functions. The specific case study is for site-specific nitrogen (N) application to corn production in Argentina. Spatial structure of the yield data is modeled with landscape variables, spatially autoregressive error and groupwise heteroskedasticity. Results suggest that N response differs by landscape position, and that site-specific application may be modestly profitable. Profitability depends on the model specification used, with all spatial models consistently indicating profitability, whereas the nonspatial models do not.